Eclipse CDT: Unresolved inclusion of stl header

Question

I'm trying to use Eclipse to edit sources, compiled under C++ Builder, but stuck with Unresolved inclusion problem.

For example, code like:

#include <vector>

Gives Unresolved inclusion: <vector> error in Eclipse IDE. C++ Builder indeed has no vector file, instead it has vector.h which is used by compiler.

Eclipse IDE gives no error if I write

#include <vector.h>

How do I tell Eclipse to use vector.h when it sees #include <vector>?

Answer 1

This allowed me to avoid Eclipse "Unresolved inclusion" error.

In my case I had to find the location of the C++ vector header on my computer (which is a Mac):

find /usr/local -name vector -print

I found the correct include location in folder "/usr/include/c++/4.2.1". Then I set my project eclipse settings like so:

Project->Properties->C/C++ General->Paths and Symbols->GNU C++->(Add)->"/usr/include/c++/4.2.1"

I'm not using C++ Builder, but my solution might address part of your trouble.

Answer 2

You could also try use "CDT GCC Built-in Compiler Settings". Go to the project properties > C/C++ General > Preprocessor Include Path > Providers tab then check "CDT GCC Built-in Compiler Settings" if it is not.

None of the other solutions (play with include path, etc) worked for me for the type 'string', but this one fixed it.

Answer 3

On Windows, with Eclipse CDT Oxygen, none of the solutions described here worked for me (including the "Provider" - "CDT GCC Built-in Compiler Settings"). What works for me is:

• Install Cygwin, with notably the following packages (maybe not all are strictly needed for this):
  • libgcc1
  • cygwin32-gcc-core, cygwin32-gcc-g++
  • gcc-g++
  • mingw64-x86_64-gcc-core, mingw64-x86_64-gcc-g++
• In Project Properties:
  • Go to "C/C++ Build" - "Tool Chain Editor" and select "Cygwin GCC" as the "Current toolchain":
  • Go to "C/C++ General" - "Preprocessor Include Paths, Macors etc.", in the "Providers" tab, select:
    • "CDT Users Setting Entries" (I need them for other includes, such as the Google Test ones, which I manually referenced);
    • "CDT GCC Built-in Compiler Settings Cygwin".

Answer 4

memory and memory.h don't refer to the same source.

One is for c, the other for c++

Do you have the right includes source in your project settings ?